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Relational Schema Diagram In Dbms. A database schema defines its entities and the relationship among them. It can use the same name and same set of attributes as the entity set.
Its the database designers who design the schema to help programmers understand the database and make it useful. We will use the student-section-course database as an example. The overall description of the database is called the database schema.
A database schema is the collection of relation schemas for a whole database.
A relation is defined as of data representing multiple occurrences of an object event or agent. Relational Model was proposed by EF. A relational database schema is an arrangement of relation states in such a manner that every relational database state fulfills the integrity constraints set on a relational database schema. Relation schema defines what the name of the table is.